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C A T E N G I N E S F O R O I L A N D G A S A P P L I C A T I O N S

repowerDRILLING RIG

W H E R E T H E W O R L D T U R N S F O R P O W E R

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You can repower your rig without reconfiguring your

engine room. Caterpillar has a powerful solution for

replacing 6.25" bore engines thats less expensive than

rebuilding, and simpler than you ever thought

possible. Cat 3500B Series engines have the same

centerlines, footprint, and hookups as Cat D379,

D398, and D399 engines so theyre fast and easy to

install. They also come with the value and security of

buying Caterpillar quality. So whats the difference?

More power. More efficiency. Or both. Its up to you.

Join other smart contractors in repowering with Cat

3500B Series engines. When it comes to drilling down,

productivity is looking up.

Youre wondering how a new, more powerful engine can costless than overhauling an existing one, right? Heres the answer.

Due to higher heat rejection on the D399, you can use a new

3516B rated at 1802 hp @ 1200 rpm without replacing the

cooling system or the base. Or, a 3512B may be used in a D399

package without replacing the base, generator, or exhaust or

cooling systems.

If youre not convinced of the savings, do the math:

THE BOTTOM LINE

Cost of new 3516B (engine only) $

Less market value of D399 core $

Less cost to overhaul D399 $

Actual cost of repowering with 3516B =$

R E P O W E R V S . R E B U I L D G E T M O R E F O R L E S S

I F T H E E N G I N E F I T S . . .

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LAND RIG SCR* OFFSHORE SCRMECHANICAL DRIVE

PUMPING AND DRILLINGPower (hp) Repower (hp) Power (hp) Repower (hp) Power (hp) Repower (hp)

D399 (1215) 3516B (1855-2150) D399 (1325) 3516B (1855-2150) D399 (1100) 3516B (1855-2150)*

D399 (1215)

D398 (912) 3512B (1477-1610) D398 (1000) 3512B (1477-1610) D398 (850) 3512B (1400)*

D398 (912) 3512B (1050)*

D379 (610) 3508B (915) D379 (550) 3508B (900)

3508B (760)

All at 1200 rpm*Not U.S. EPA emissions certified.

FUEL CONSUMPTION COMPARISON

Gallonsperhour

Horsepower

3516/2155 hp 3512/1610 hp D399/1210 hp

400 600 800 1000 1200 1400 1600 1800 2000 220010

30

50

70

90

110

ANNUAL LAND RIG FUEL SAVINGS

US

$peryear

Gallons of diesel per day rig fuel consumption

500 1000 1500 2000 2500 30000

20000

40000

60000

80000

1000002000 7000 12000

Liters of diesel per day

*Based on 300 days drilling in a year, at $0.75 per gallon or $0.20 per liter.

14%

TYPI

CAL*

More horsepower, less on your mind. Added power is just one of many benefits of repowering with a Cat 3500B Series engine.

Dont overlook better fuel economy, long life, easy servicing, the industrys lowest operating cost, and unmatched customer support.

R E P O W E R R E W A R D S

A P O W E R F U L A R G U M E N T

F U E L I N G P R O G R E S S

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LEDW3153 2003 CaterpillarSupersedes LECW7527 All rights reserved.

Printed in U.S.A.

Caterpillar Inc.Petroleum Business Unit

13105 Northwest Freeway Suite 1010Houston, TX 77040-6321

Tel: (309) 578-6298Fax: (309) 578-2559

E-mail: CAT_Power@Cat.comwww.cat-oilandgas.com

Cat engines have been the driving force behind the majority of the worlds wells for years. Youll find them from Prudhoe Bay to the

North Sea to Abu Dhabi. And you wont find this kind of experience anywhere but Caterpillar. Key to our success is the unparalleled

customer support that accompanies our unparalleled products. Responsive experts at more than 1,200 Cat dealer outlets worldwide

keep our engines performing to their potential so your drilling rig can do the same 24 hours a day, 365 days a year.

Reap the valuable rewards of repowering with a Cat 3500B Series engine.

P E T R O L E U M P A R T N E R S O N S H O R E A N D O F F

M E A S U R A B L E I M P R O V E M E N T

6.25" Bore 3500B Series

MODEL COMPARISONS3516B HD 3516B D399 3512B HD D398 3508B D379

@1200 rpm @1200 rpm @1200 rpm @1200 rpm @1200 rpm @1200 rpm @1200 rpmElectric Drive,

Landhp 2150 1855 1215 1610 910 915 610

Displacement in3 (L) 4,764 (78.0) 4,210 (69.0) 3,927 (64.4) 3,158 (51.8) 2,945 (48.3) 2,105 (34.5) 1,964 (32.2)

Crankshaft lb (kg) 1,602 (727) 1,602 (727) 1,181 (536) 1,225 (555) 876 (397) 868 (394) 581 (264)

Engine lb (kg) 18,080 (8201) 18,080 (8201) 15,300 (6940) 14,960 (6786) 12,700 (5760) 9,500 (4309) 9,450 (4266)

ENGINE FAMILY COMPARISON6.25" Bore 3500 Series

BMEP psi (bar) 204 (14.0) 282 (19.3) +38%

Piston Speed fpm (m/s) 1600 (8.1) 1500 (7.6) -6%

Bearing Area, Main in2 (cm2) 11.5 (74) 13.6 (88) +18%

Bearing Area, Rods in2 (cm2) 9.1 (59) 11.5 (74) +26%

Oil Film Thickness mm 110 170 +55%